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The ACA MarketplaceS

Change in February effectuated enrollment, by state, 2025-2026

How Has ACA Marketplace Enrollment Changed Across States in 2026?

ACA Marketplace enrollment fell this year in every state except New Mexico, which was the only state to fully replace the enhanced premium tax credits that expired last year with a state-funded subsidy, according to a new KFF analysis of effectuated enrollment data. The Marketplace enrollment decline—the first in seven years—follows several years of rapid enrollment growth and coincides with the end of the enhanced federal subsidies.

How Much and Why ACA Marketplace Premiums Are Going Up in 2027

ACA Marketplaces insurers are proposing a median premium increase of 15% in 2027, according to KFF’s updated analysis of 276 insurers with publicly available filings across all 50 states and the District of Columbia. This is the second consecutive year of double-digit premium hikes. Last year’s median nationwide proposed rate change was 18%, and the median finalized rate change was 20%. While this proposed rate change is lower than last year, it represents the second-highest requested rate change since 2018, as premium growth had been relatively flat in this market for several years.

About the ACA

Promotional image for KFF video How Affordable is the Affordable Care Act

Did the Affordable Care Act Make Health Care More Affordable?

The expiration of the ACA’s enhanced premium tax credits at the start of 2026, combined with rising insurer premiums, put a spotlight on health care affordability that extends beyond Marketplace enrollees. KFF’s Cynthia Cox examines the ACA’s record and the broader underlying question it raises: what’s a fair price for Americans people to pay for health care?

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  • Explaining Health Reform: Medicare and the New Independent Payment Advisory Board

    Issue Brief

    This brief describes how the new board created under the 2010 health reform law is expected to limit the growth in Medicare spending over time. Starting in 2014, if projected per capita Medicare spending exceeds targets set in the law, the board must recommend ways to reduce Medicare spending, while maintaining quality and access to care for beneficiaries. The board’s recommendations automatically take effect the next year unless Congress adopts an alternative plan to achieve…

  • Pulling it Together: The “Third School” for Controlling Health Care Costs?

    Perspective

    For as long as I have been in the field, there have been two dominant schools of thought about how to control health care costs. One school, The Regulators, believed that the best way to slow increasing costs was to control the total resources going into the health care system: putting limits on the supply of medical professionals, technology and facilities; setting payment rates; or putting enough purchasing power in the hands of government to…

  • Health Care Reform and the CLASS Act

    Issue Brief

    This issue brief examines the Community Living Assistance Services and Supports (CLASS) program, a component of the health reform law that establishes a national, voluntary insurance program for purchasing community living services and supports that is designed to expand options for people who become functionally disabled and require long-term help. This brief describes the major components of the CLASS program including its financing, eligibility criteria, benefit design and interaction with Medicaid. Issue Brief (.pdf)

  • Health Reform Implementation: When Sausage-Making Moves Downtown

    Event Date:
    Event

    Panelists at this briefing examine what's happening behind the scenes to implement the Patient Protection and Affordable Care Act. An overview of federal policymaking and the efforts by stakeholders and others to affect final policies pertaining to the health reform law is provided. The session will look into key tools and levers available to the federal government, including formal rulemaking and other policy processes, as well as efforts by stakeholders and others to affect final…

  • Health Reform Roundtables: Charting A Course Forward

    Report

    Health Reform Roundtables: Charting A Course Forward is a series of discussions among federal officials, state officials and outside experts that provides an opportunity to share insights and explore key issues related to implementing a significant expansion of the Medicaid program as part of the new health reform law that will require most U.S. citizens and legal residents to obtain health coverage. States will be largely responsible for implementing the Medicaid expansion, which will provide…

  • Financial Alignment Models for Dual Eligibles: An Update

    Issue Brief

    The nearly nine million dual eligibles who receive both Medicare and Medicaid benefits are a high cost, high need population, accounting for a disproportionate share of expenditures relative to their enrollment in both programs. In April 2011, the Centers for Medicare and Medicaid Services (CMS) announced the award of design contracts to 15 states to develop service delivery and payment models to integrate care for dual eligibles. CMS and the participating states have recognized that…

  • Pulling it Together: How the ACA Can Help The Homeless

    From Drew Altman

    Estimates are that there are approximately 630,000 people who are homeless on any given night in the U.S. -- about two-thirds in shelters and one-third on the street or without real shelter. Several million people are estimated to experience homelessness over the course of a year. About two-thirds are individuals and the balance are in families. These numbers are virtually identical to national estimates we used when I worked intensively on the issue of homelessness in the…

  • Health Provisions in the 2025 Federal Budget Reconciliation Law

    Issue Brief

    On July 4, President Trump signed the budget reconciliation bill, previously known as the “One Big Beautiful Bill Act,” into law. This summary provides background, description, budgetary impact and related information on the health care provisions of the law in four categories: Medicaid, the Affordable Care Act, Medicare and Health Savings Accounts (HSAs).

  • 2021 Premium Changes on ACA Exchanges and the Impact of COVID-19 on Rates

    Issue Brief

    This brief summarizes premium rate filings in all 50 states and the District of Columbia and finds the majority of rate changes for 2021 are moderate, with increases or decrease of a few percentage points. Insurers say the COVID-19 pandemic is putting both upward and downward pressure on health costs in 2021.

  • Joe Biden’s Big Lead on Health Care Issues

    From Drew Altman

    In an Axios column, Drew Altman discusses how this election year health isn’t a single issue -- but several -- and Joe Biden has the edge over President Trump on all of them, even as opposition to the ACA remains popular with Trump’s base.